package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 订单业务实现
 */
@Service
@Slf4j
public class OrderServicelmpl implements OrderService {

    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;

    @Value("${sky.shop.address}")
    private String shopAddress;

    @Value("${sky.baidu.ak}")
    private String ak;

    @Autowired
    private WebSocketServer webSocketServer;


    /**
     * 用户下单
     *
     * @param ordersSubmitDTO
     * @return
     */

    @Transactional
    public Orders scleteById(OrdersSubmitDTO ordersSubmitDTO) {
        // 数据的合法性检查(检查地址id、购物车)
        Long addressBookId = ordersSubmitDTO.getAddressBookId();
        if (addressBookId == null) {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }

        //查询当前用户的购物车数据
        List<ShoppingCart> shoppingCartList = shoppingCartMapper.list(ShoppingCart.builder()
                .userId(BaseContext.getCurrentId())
                .build());
        if (shoppingCartList == null || shoppingCartList.size() == 0) {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        AddressBook addressBook = addressBookMapper.getById(addressBookId);


        //检查收货地址是否超出配送范围
        //checkOutOfRange(addressBook.getCityName() + addressBook.getDistrictName() + addressBook.getDetail());


        // 向订单表插入1条数据
        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO, orders);
        orders.setNumber(System.currentTimeMillis() + "");
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setPayStatus(Orders.UN_PAID);
        orders.setAddress(addressBook.getDetail());
        orders.setConsignee(addressBook.getConsignee());
        orders.setPhone(addressBook.getPhone());
        orders.setOrderTime(LocalDateTime.now());
        orders.setUserId(BaseContext.getCurrentId());
        orders.setUserName(addressBook.getConsignee());
        orderMapper.insert(orders);

        List<OrderDetail> orderDetailList = new ArrayList<>();

        for (ShoppingCart shoppingCart : shoppingCartList) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(shoppingCart, orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailList.add(orderDetail);
        }

        // 向明细表插入n条数据
        orderDetailMapper.insertBatch(orderDetailList);

        // 清空购物车
        shoppingCartMapper.deleteByUserId(BaseContext.getCurrentId());

        Map map = new HashMap();
        map.put("type",1);
        map.put("orderId",orders.getId());
        map.put("content","订单号：" + orders.getNumber());

        String json = JSON.toJSONString(map);
        webSocketServer.sendToAllClient(json);

        return orders;
    }

    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

        //调用微信支付接口，生成预支付交易单
        JSONObject jsonObject = weChatPayUtil.pay(
                ordersPaymentDTO.getOrderNumber(), //商户订单号
                new BigDecimal(0.01), //支付金额，单位 元
                "苍穹外卖订单", //商品描述
                user.getOpenid() //微信用户的openid
        );

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }

        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));

        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);

        Map map = new HashMap();
        map.put("type",1);
        map.put("orderId",orders.getId());
        map.put("content","订单号：" + ordersDB.getNumber());

        String json = JSON.toJSONString(map);
        //向客户端推送消息
        webSocketServer.sendToAllClient(json);
    }

    /**
     * 查询当前用户的历史订单
     *
     * @param ordersPageQueryDTO
     * @return
     */
    public PageResult queryHistory(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
        Orders orders = Orders.builder()
                .status(ordersPageQueryDTO.getStatus())
                .userId(BaseContext.getCurrentId())
                .build();
        // 获取订单
        Page<OrderVO> page = orderMapper.queryHistory(orders);
        // 获取订单详情
        List<OrderVO> result = page.getResult();
        for (int i = 0; i < result.size(); i++) {
            List<OrderDetail> orderDetailList = orderDetailMapper.getById(result.get(i).getId());
            if (orderDetailList != null && orderDetailList.size() != 0) {
                result.get(i).setOrderDetailList(orderDetailList);
            }
        }
        log.info("123:" + page.getTotal());
        log.info("wzw:" + result);
        return new PageResult(page.getTotal(), result);
    }

    /**
     * 查询订单详情
     *
     * @param id
     * @return
     */
    public OrderVO getById(Integer id) {
//        根据id查询指定订单的数据
        Orders orders = orderMapper.getById(id);
//        获取到该订单的明细
        List<OrderDetail> list = orderDetailMapper.getById(id.longValue());
//        封装这两个数据
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders, orderVO);
        orderVO.setOrderDetailList(list);

        return orderVO;
    }

    /**
     * 取消订单用户端
     */
    public void cancelById(Integer id) {
        Orders builder = Orders.builder()
                .id(id.longValue())
                .status(Orders.CANCELLED)
                .payStatus(Orders.REFUND)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(builder);
    }

    /**
     * 再来一单
     * @param id
     * @return
     */
    public void repetitionById(Integer id) {

//        获取到指定订单的明细
        List<OrderDetail> list = orderDetailMapper.getById(id.longValue());

        for (OrderDetail orderDetail : list) {
            ShoppingCart shoppingCart = new ShoppingCart();

            BeanUtils.copyProperties(orderDetail,shoppingCart);

            shoppingCart.setUserId(BaseContext.getCurrentId());
            shoppingCart.setCreateTime(LocalDateTime.now());

            // 向购物车中插入n条数据
            shoppingCartMapper.insert(shoppingCart);
        }
    }

    /**
     * 订单搜索
     * @param ordersPageQueryDTO
     * @return
     */
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(), ordersPageQueryDTO.getPageSize());
//        获取订单
        Page<OrderVO> page =  orderMapper.conditionSearch(ordersPageQueryDTO);
//        获取订单详情
        List<OrderVO> result = page.getResult();
        for (int i = 0; i < result.size(); i++) {
            List<OrderDetail> orderDetailList = orderDetailMapper.getById(result.get(i).getId());
            if (orderDetailList != null && orderDetailList.size() != 0) {
                String dish = "";
                for (OrderDetail orderDetail : orderDetailList) {
                    dish = dish + orderDetail.getName() + "*" + orderDetail.getNumber() + ",";
                }
                result.get(i).setOrderDishes(dish);
            }
        }
        return new PageResult(page.getTotal(), result);
    }

    /**
     * 各个状态的订单数量统计
     * @return
     */
    public OrderStatisticsVO statistics() {
        Integer integer = orderMapper.selectByStatus(Orders.REFUND);
        Integer integer1 = orderMapper.selectByStatus(Orders.CONFIRMED);
        Integer integer2 = orderMapper.selectByStatus(Orders.DELIVERY_IN_PROGRESS);
        return new OrderStatisticsVO(integer,integer1,integer2);
    }

    /**
     * 接单
     * @param ordersConfirmDTO
     * @return
     */
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders builder = Orders.builder()
                .id(ordersConfirmDTO.getId())
                .status(Orders.CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();
        orderMapper.update(builder);
    }

    /**
     * 拒单
     * @param ordersRejectionDTO
     */
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) {
        Orders builder = Orders.builder()
                .id(ordersRejectionDTO.getId())
                .status(Orders.CANCELLED)
                .payStatus(Orders.REFUND)
                .rejectionReason(ordersRejectionDTO.getRejectionReason())
                .cancelTime(LocalDateTime.now())
                .build();

        orderMapper.update(builder);
    }

    /**
     * 取消订单服务端
     * @param ordersCancelDTO
     * @return
     */
    public void cancel(OrdersCancelDTO ordersCancelDTO) {
        Orders builder = Orders.builder()
                .id(ordersCancelDTO.getId())
                .status(Orders.CANCELLED)
                .payStatus(Orders.REFUND)
                .cancelReason(ordersCancelDTO.getCancelReason())
                .cancelTime(LocalDateTime.now())
                .build();

        orderMapper.update(builder);
    }

    /**
     * 派送订单
     * @param id
     * @return
     */
    public void deliveryById(Integer id) {
        Orders builder = Orders.builder()
                .id(id.longValue())
                .status(Orders.DELIVERY_IN_PROGRESS)
                .payStatus(Orders.PAID)
                .build();

        orderMapper.update(builder);
    }

    /**
     * 完成订单
     * @param id
     * @return
     */
    public void completeById(Integer id) {
        Orders builder = Orders.builder()
                .id(id.longValue())
                .status(Orders.COMPLETED)
                .payStatus(Orders.PAID)
                .deliveryTime(LocalDateTime.now())
                .build();
        orderMapper.update(builder);
    }

    /**
     * 客户催单
     * @param id
     */
    public void reminder(Long id) {
        Orders orders = orderMapper.getById(id.intValue());
        if(orders == null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }

        Map map = new HashMap();
        map.put("type",2);
        map.put("orderId",orders.getId());
        map.put("content","订单号：" + orders.getNumber());

        String json = JSON.toJSONString(map);
        //向客户端推送消息
        webSocketServer.sendToAllClient(json);
    }

    /**
     * 检查客户的收货地址是否超出配送范围
     * @param address
     */
    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 5000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }


}